footer {
  background-color: $footer-background-color;
  padding: 10px 0 0 0;
  color: #999;
  .site-info {
    padding: 20px 0;
    h3 {
      color: #fff;
      margin: 0;
      padding: 5px 0;
      font-size: 15px;
    }
    p {
      margin: 0;
      font-size: 13px;
      padding: 3px 0;
    }
  }
  .copyright {
    text-align: center;
    padding: 15px 0 5px 0;
    margin-top: 10px;
    font-size: 12px;
    background-color: darken($footer-background-color, 5%);
    p {
      padding: 0;
      margin: 0;
    }
  }
  .contacts {
    span {
      color: #fff;
    }
    a {
      color: #fff;
      display: inline-block;
    }
    .contact-detail {
      margin-top: 10px;
    }
    p {
      i {
        margin-right: 10px;
      }
    }
  }
  .contact-icon {
    width: 33px;
    height: 33px;
    margin: 0 4px;
    border: 1px solid #fff;
    font-size: 18px;
    border-radius: 50%;
    text-align: center;
    line-height: 33px;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
  }

  .fa-weibo {
    &:hover {
      background-color: #E6162D;
      border-color: #E6162D;
    }
  }
  .fa-weixin {
    &:hover {
      background-color: #15C286;
      border-color: #15C286;
    }
  }
  .fa-qq {
    &:hover {
      background-color: #1F98D9;
      border-color: #1F98D9;
    }
  }
  .fa-renren {
    &:hover {
      background-color: #217DC6;
      border-color: #217DC6;
    }
  }
}